2017 Audi S7 Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2017 Audi S7 and How to Fix Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2017 Audi S7 cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2017 Audi S7 cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

What steps should I take to diagnose the cruise control issue in my 2017 Audi S7?

When diagnosing a cruise control issue in your 2017 Audi S7, it's essential to adopt a systematic approach that begins with the simplest solutions before progressing to more complex diagnostics. Start by checking the cruise control fuse, as a blown fuse can easily disrupt the system's functionality. Next, inspect the cruise control buttons on your steering wheel to ensure they are operational, since faulty buttons can lead to malfunctions. Utilizing an OBD-II scanner to check for error codes is a crucial step, as it can reveal specific issues affecting the cruise control system. Additionally, verify that the speed sensors are functioning correctly, as they are vital for maintaining speed. Don't overlook the importance of examining wiring connections for any damage or looseness, as these can also impede the cruise control's performance. If these steps do not resolve the issue, it may be time to consult a professional mechanic or an authorized Audi service center, as they possess the expertise and specialized tools necessary for accurate diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and address the cruise control problem in your Audi S7.

What are the common problems that could cause the cruise control to stop working in a 2017 Audi S7?

When the cruise control in your 2017 Audi S7 ceases to function, it can be frustrating, but understanding the common problems can help you diagnose the issue effectively. One of the primary culprits is a faulty speed sensor, which is crucial for the cruise control system to accurately gauge your vehicle's speed. If this sensor is malfunctioning, the system may fail to engage or maintain the desired speed. Additionally, issues with the brake light switch can disrupt the cruise control's operation, as it relies on signals from the brake system to function correctly. Another potential problem could be a malfunctioning throttle actuator, which is responsible for controlling the engine's throttle opening; if it fails, the cruise control may struggle to maintain speed. Electrical problems, such as blown fuses or wiring issues, can also hinder the cruise control system's performance. Lastly, vacuum leaks in the system can lead to a loss of pressure, further complicating the operation of the cruise control. By identifying these common issues, you can take the first steps toward troubleshooting and potentially restoring the functionality of your cruise control system.

How urgent is it to address the malfunctioning cruise control in a 2017 Audi S7?

Addressing the malfunctioning cruise control in a 2017 Audi S7 is of utmost urgency due to the significant safety risks it poses. A malfunction can lead to unexpected acceleration or deceleration, which can result in dangerous driving situations and increase the likelihood of accidents. Moreover, neglecting this issue may not only compromise your safety but could also lead to further damage to the vehicle's systems, resulting in more extensive and costly repairs down the line. Timely intervention ensures that the vehicle remains reliable and efficient, allowing for a smoother driving experience. Therefore, it is crucial to prioritize the repair of the cruise control system to maintain both safety and optimal vehicle performance.

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2017 Audi S7 Cruise Control Malfunctions & Solutions | RepairPal